let f(x) = 4x - 5
a) find f(3)
b) find x when f(x) = -21
my answer for a is f(3) = 7 and for b is x = -4. are these correct?
1 answer
yes
a) find f(3)
b) find x when f(x) = -21
my answer for a is f(3) = 7 and for b is x = -4. are these correct?
1 answer